13405( 4) - 26-Sep-2013 12:58:04 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13405 Version: 4 Check-in Time: 26-Sep-2013 12:58:04 STScI Edit Number: 0 Title SAINTS: Images of SN 1987A ------------------------------------------------------------------------------------ Type Cycle GO 21 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Robert P. Kirshner Harvard University Y CoI: Dr. Patrice Bouchet CEA/DSM/DAPNIA/Service d'Astrophysique N CoI: Mr. Peter Challis Harvard University N CoI: Dr. Roger A. Chevalier The University of Virginia N CoI: Dr. Arlin Crotts Columbia University in the City of New N York CoI: Dr. John I. Danziger INAF, Osservatorio Astronomico di Trieste N CoI: Dr. Eli Dwek NASA Goddard Space Flight Center N CoI: Dr. Kevin France University of Colorado at Boulder N CoI: Prof. Claes Fransson Stockholm University N CoI: Dr. Peter Garnavich University of Notre Dame N CoI: Prof. Kevin Heng University of Bern N CoI: Dr. Josefin Larsson Alfven Laboratory, Royal Institute of N Technology CoI: Dr. Stephen S. Lawrence Hofstra University N CoI: Dr. Bruno Leibundgut European Southern Observatory - Germany N CoI: Prof. Peter Lundqvist Stockholm University N CoI: Dr. Seppo Mattila University of Turku N CoI: Dr. Richard McCray University of Colorado at Boulder N CoI: Prof. Nino Panagia Space Telescope Science Institute N CoI: Dr. Jason Pun University of Hong Kong N CoI: Dr. Nathan Smith University of Arizona N CoI: Dr. Jesper Sollerman Stockholm University N CoI: Dr. George Sonneborn NASA Goddard Space Flight Center N CoI: Dr. Ben E. K. Sugerman Goucher College N CoI: Dr. Nicholas B. Suntzeff Texas A & M University N CoI: Dr. J. Craig Wheeler University of Texas at Austin N ------------------------------------------------------------------------------------ Abstract SN 1987A is the great supernova of the HST era. It is the only case where we have detailed knowledge of the pre-existing structure in the circumstellar gas. It is the only case where we can observe the details of a transition from supernova to supernova remnant. An unbroken string of observations is the essential tool for detecting change and establishing a uniform legacy archive. As we have demonstrated, images reveal a wide variety of processes at work-- most notably the change in the energetics of the debris from radioactive power in the first 5000 days to X-ray illumination from the outside at the present day. We also observed the explosive eruption of "hotspots" around the circumstellar ring and are now using their time history to infer their structure. We have devised a way to image the reverse shock at both Lyman alpha and H-alpha that will help solve a 13405( 4) - 26-Sep-2013 12:58:04 - [ 2] riddle in the excitation of these lines and illuminate the hydrodynamics of the site where non-thermal processes are at work. We propose this novel UV work for the current cycle. The HST observations have a unique blend of photometric fidelity and angular resolution that also makes them the indispensable partner to ongoing X-ray, radio, and far-IR observations. ALMA provides a new way to study dust formation and the kinematics of the explosion by comparison to HST images. This HST program is a long term study: for a 25 year old remnant, we believe brief and simple annual sampling is adequate, but an ongoing commitment is essential. ------------------------------------------------------------------------------------ Observations Description ------------------------ The proposed imaging program of SN 1987A will provide continuing information on the luminosity and expansion of the debris, eruption and evolution of hotspots, and photoionization of the surrounding gas, all at the highest available spatial resolution. Summary of the proposed observations: Cycle 21: 1 orbit with F435W, F625W, 2 orbits with F657N, F502N, 4 orbits with F656N, F645N, F665N and F658N, and 3 orbits with ACS/SBC/F122M = total 10 orbits Cycle 22: 1 orbit with F435W, F625W = total 1 orbit Cycle 23: 1 orbit with F435W, F625W, 2 orbits with F657N, F502N = total 3 orbits Observations using WFC3/UVIS with filters F435W, F625W, F657N, F502N will connect with our earlier observations at similar signal-to-noise ratio (S/N) through drizzled observations. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 13405( 4) - 26-Sep-2013 12:58:04 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-1987A EXT-STAR, SUPERNOVA RA=05H35M28.0200S, J2000 V = 20 DEC=-69D16'11.07" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 13405( 4) - 26-Sep-2013 12:58:04 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG Pattern_Orient 23.884 Angle_Between_Sides 81.785 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.179 Line_Spacing 0.116 Coordinate_Frame POS-TARG Pattern_Orient 20.02 Angle_Between_Sides 63.65 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 13405( 4) - 26-Sep-2013 12:58:04 - [ 5] Visit: 01 Visit Requirements: BETWEEN 13-JUN-2014:00:00:00 AND 15-JUL-2014:00:00:00; SEQ 01, 02, 03, 04 WITHIN 10 D On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F438W CR-SPLIT=NO, FLASH=10 1 300 S PATTERN 1 1-2 S 1C-SUB (1200 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F625W CR-SPLIT=NO, FLASH=2 1 300 S S 1C-SUB (1200 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 1 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 2 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 3 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 4 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 1 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 2 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 3 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 4 none none none 1 N/A S K1C-SUB 13405( 4) - 26-Sep-2013 12:58:04 - [ 6] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-1987A ACS/SBC ACCUM SBC F122M 1 1000 S PATTERN 2 1 (4000 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-1987A ACS/SBC ACCUM SBC F122M 1 1000 S POS TARG 0.15, 0.15; (4000 S) PATTERN 2 2 ------------------------------------------------------------------------------------------------------------------------------------ 3 SN-1987A ACS/SBC ACCUM SBC F122M 1 1200 S (1200 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN-1987A 1 ACS/SBC ACCUM SBC F122M 1 none none none 1 N/A SN-1987A 1 ACS/SBC ACCUM SBC F122M 2 none none none 1 N/A SN-1987A 1 ACS/SBC ACCUM SBC F122M 3 none none none 1 N/A SN-1987A 1 ACS/SBC ACCUM SBC F122M 4 none none none 2 N/A SN-1987A 2 ACS/SBC ACCUM SBC F122M 1 none none none 2 N/A SN-1987A 2 ACS/SBC ACCUM SBC F122M 2 none none none 2 N/A SN-1987A 2 ACS/SBC ACCUM SBC F122M 3 none none none 3 N/A SN-1987A 2 ACS/SBC ACCUM SBC F122M 4 none none none 3 N/A SN-1987A 3 ACS/SBC ACCUM SBC F122M none none none none 3 N/A 13405( 4) - 26-Sep-2013 12:58:04 - [ 7] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F502N CR-SPLIT=NO, FLASH=11 1 700 S PATTERN 1 1-2 S 1C-SUB (2800 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F502N CR-SPLIT=NO, FLASH=11 1 770 S S 1C-SUB (3080 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F502N 1 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F502N 2 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F502N 3 none none none 2 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F502N 4 none none none 2 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F502N 1 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F502N 2 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F502N 3 none none none 2 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F502N 4 none none none 2 N/A S K1C-SUB 13405( 4) - 26-Sep-2013 12:58:04 - [ 8] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F645N CR-SPLIT=NO, FLASH=11 1 720 S PATTERN 1 1-4 S 1C-SUB (2880 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F656N CR-SPLIT=NO, FLASH=11 1 720 S S 1C-SUB (2880 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F658N CR-SPLIT=NO, FLASH=11 1 720 S S 1C-SUB (2880 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F665N CR-SPLIT=NO, FLASH=11 1 720 S S 1C-SUB (2880 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F645N 1 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F645N 2 none none none 2 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F645N 3 none none none 3 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F645N 4 none none none 4 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F656N 1 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F656N 2 none none none 2 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F656N 3 none none none 3 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F656N 4 none none none 4 N/A S K1C-SUB SN-1987A 3 WFC3/UVI ACCUM UVIS2-C1 F658N 1 none none none 1 N/A S K1C-SUB SN-1987A 3 WFC3/UVI ACCUM UVIS2-C1 F658N 2 none none none 2 N/A S K1C-SUB SN-1987A 3 WFC3/UVI ACCUM UVIS2-C1 F658N 3 none none none 3 N/A S K1C-SUB SN-1987A 3 WFC3/UVI ACCUM UVIS2-C1 F658N 4 none none none 4 N/A S K1C-SUB 13405( 4) - 26-Sep-2013 12:58:04 - [ 9] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN-1987A 4 WFC3/UVI ACCUM UVIS2-C1 F665N 1 none none none 1 N/A S K1C-SUB SN-1987A 4 WFC3/UVI ACCUM UVIS2-C1 F665N 2 none none none 2 N/A S K1C-SUB SN-1987A 4 WFC3/UVI ACCUM UVIS2-C1 F665N 3 none none none 3 N/A S K1C-SUB SN-1987A 4 WFC3/UVI ACCUM UVIS2-C1 F665N 4 none none none 4 N/A S K1C-SUB 13405( 4) - 26-Sep-2013 12:58:04 - [ 10] Summary Form for Proposal 13405 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures SBC, UVIS2-C1K1C-SUB ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, FLASH=10, FLASH=11, FLASH=2 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 13-JUN-2014:00:00:00 AND 15-JUL-2014:00:00:00, PATTERN 1 1-2, PATTERN 1 1-4, PATTERN 2 1, PATTERN 2 2, POS TARG 0.15, 0.15, SEQ 01, 02, 03, 04 WITHIN 10 D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F122M, F438W, F502N, F625W, F645N, F656N, F658N, F665N ------------------------------------------------------------------------------------------------------------------------------------ Target Names SN-1987A ------------------------------------------------------------------------------------------------------------------------------------